Traxxas 27-T 0.8 Metric Pitch 5mm Shaft RC Pinion Gear - 5647

The Traxxas 5647 is a 27-tooth pinion gear designed for use with Traxxas electric RC models fitted with a 5mm motor shaft. Carrying style code TRX5647, this pinion uses 0.8 metric pitch, which Traxxas confirms is compatible with standard 32-pitch gearing, making it a straightforward replacement when swapping out a worn or stripped pinion. It locks securely to the motor shaft via a set screw, keeping the drivetrain connection firm under load.

Key Features

• 27-tooth count suits applications where a moderate gear ratio is required for balanced speed and torque
• 0.8 metric pitch is dimensionally compatible with 32-pitch spur gears, giving flexibility when pairing with existing drivetrain components
• Designed to fit a 5mm motor shaft, which is the standard diameter across a wide range of Traxxas brushed and brushless motors
• Set screw retention keeps the pinion positively located on the shaft and prevents slippage during aggressive driving
• Direct Traxxas part — matched to OEM tolerances for consistent mesh with Traxxas spur gears

Compatible With

• Traxxas models using a 5mm motor shaft and 32-pitch or 0.8 metric pitch spur gear
• Traxxas 85086-4 (confirmed Parts By Model reference)
• Compatible with Traxxas brushed and brushless motors with a 5mm output shaft

What's Included

• 1 x Traxxas 5647 27-tooth pinion gear (0.8 metric pitch / 32-pitch compatible, 5mm shaft bore)
• 1 x Set screw